{"id":"AZL-86757","summary":"CVE-2026-4891 affecting package dnsmasq for versions less than 2.92-1","details":"A heap-based out-of-bounds read vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet.","modified":"2026-08-31T05:26:27Z","published":"2026-05-11T18:16:41Z","upstream":["CVE-2026-4891"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4891"}],"affected":[{"package":{"name":"dnsmasq","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/dnsmasq"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.92-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-86757.json"}}],"schema_version":"1.9.0"}